All autossh does is try to keep open/restart an ssh connection as a daemon — I’m not sure there’s any benefit to it these days than just using a systemd service

All autossh does is try to keep open/restart an ssh connection as a daemon — I’m not sure there’s any benefit to it these days than just using a systemd service. That being said, as an example `ssh user@host.com -R 8181:localhost:8080` will open port 8181 on the remote machine you’re connecting to, and forward traffic that’s addressed there to port 8181 on the machine you’re connecting from. That is, you’ll be able to open a browser to http://host.com:8181 http://host.com:8181 to test something running on your dev machine at port 8080. Traffic gets forwarded along the ssh tunnel. Autossh (or a systemd service supervising an `ssh` connection) will keep that tunnel open.